As we already discussed in this topic, OpenOCD and VSCode are apparently not a viable solution for Verdin right now. I finally got my hands on a Segger J-Link but I’m still having problems to connect with my board.
I want to use IAR IDE with it, following the “Getting Started with MCUXpresso SDK for EVK-MIMX8MM” pdf, chapter 4 “Run a demo application using IAR”. This should be a straight forward thing. But I have seen in many forum posts (e.g. here) that a certian patch is needed for the IAR to support the arm debugging and another patch for the segger as well. I tried with the SDK_2.3_MX8MQ_Beta_Patch (if I remember correctly).
When I try to flash the code from the IAR I get an error message "missing or malformed flash loader specification file " and when I try to connect directly through the JLink Commander I’m getting an error message “Error:Target voltage too low”
I think I’m probably messing up multiple things in this process so if someone managed to use this toolchain successfully on the Verdin Mini could give a short explanation, that would be lovely!
P.s. I would also rather do it with VSCode than IAR, but as discussed in the first topic linked above, VSCode has trouble finding the right executable. In this topic they seem to have solved this problem internaly through an email exchange. Maybe this secret solution will come to light too
I’m sorry for the long delay. After seeing your question, I tried here and I could use the JLink with the VSCode to debug the Cortex-M4. So I decided to write a developer page about it, so others can check it as well.
Unfortunately, I couldn’t test it on a Windows Host machine yet. Could you please try it and see if it works for you? This guide uses the Cortex Debug extension from VSCode which is also available for Windows, so it shouldn’t be a problem. My host machine where I tested it is installed with Linux Ubuntu 22.04.
I still need to check the IAR that you mentioned. I will get back when I have more updates on the IAR software. For now, let me know if VSCode is enough for you.
Please, also feel free to ask any questions related to this guide that you might have.
(@AhmedMobarez I’m tagging you here as well since I think it is a good topic for you too).
Thank you for the developer pages. It finally works with Segger and VSCode!
Just a few notes to the content itself:
-MCUXpresso SDK and Toolchain for Cortex-M development" in the prerequisities is not working for me.
-Links inside warning bubbles concerning external and on-board jtag are not working.
When it comes to testing the JTAG itself, I needed to add
Hi @hfranco.tx ,
I have one additional question:
How can I make the M4 autoboot with the .elf file that I debug and deploy through Segger? We already discussed here how to autoboot a binary file and that’s the technique I’m still using. But when I deploy the .elf file over Segger and restart the Verdin, the old binary file from the /var folder (of course) boots back again.
It that even an option or is J-Link debugger only to be used during debug phase?